Achievements

The approach with a piece of wood overlapping the hole on the inside with screws holding the wood on the sides and patch in the center is a MUCH better method. You have much greater flexibility in matching the size of the patch to the damage and don't have nearly as much drywall feathering to do since the patch sits level with the existing wall. I cut the patch out using a utility knife to score the edges which makes the patch prep very easy. Then trace the patch over the hole and cut out the damaged portion with a drywall saw. You do need to be careful to make sure you don't hit anything inside the wall of course.

I use them for my soldering flux brushes. I drill a hole in the top and stick the brush through so the bristles stay inside the container when closed. That keeps the flux from getting all over and keeps dust and debris from getting on the brush between uses. I've gotten years of use from these 'disposable' brushes this way. It's not that their all that expensive by I hate having to remember to buy more. I agree with the comments about using them for small parts not being much of an ible or hack.